Need to add some CYA

Butterfly

0
TFP Expert
LifeTime Supporter
May 30, 2007
10,043
South Carolina
Our CYA is probably less than 10. The previous owner left a bucket of trichlor 3" tabs (that are at least circa summer 2005) and I put some in the auto feeder to try to help raise the cya.

I am trying to avoid adding the 'good stuff' until the backwashing is less.

The tabs were stored in our basement, sealed well and stink. So they probably have some 'good' left?

I check FC/pH every day.

Assuming the tabs still have some power, about how many of those will it take to get my CYA to around 20 to 30?
 
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